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Biology
Ecosystem
85 questions from 36 papers, each with its answer.
- 85 questions
- 36 papers
- 2.41% of Biology
Energy Flow and the Ten Percent Law across Trophic Levels
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In an ecosystem if the Net Primary Productivity (NPP) of first trophic level is: $100x\ (kcal\ m^{-2})\ yr^{-1}$ what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?Only about 10% of energy is transferred from one trophic level to the next (10% law). As per the solution in the source: GPP of the third trophic level $= \frac{NPP\ of\ first\ trophic\ level}{10} = \frac{100x}{10} = 10x\ (kcal\ m^{-2})\ yr^{-1}$
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